A total of 16 Type 037-1G class missile boat (also known as Houxin class) were first built by Qiuxing and Huangpu Shipyard from 1991 through 1999. This class appears to be the successor of Hegu class missile boat for the People's Liberation Army Navy (PLAN). In addition to the PLAN, 6 were exported to Myanmar: 2 in 1995, 2 in July 1996, and 2 in late 1997. This boat is the anti-ship version of the Hainan class submarine chaser armed with missiles. It is most effectively used in conjunction with multiple missile boats to send a swarm of missiles towards its intended target and then egress from the area immediately. The swarm of anti-ship missiles will hopefully slip past the target's air defenses for at least one or possibly more hits.